Improvement in machines for cleaning and polishing tubes



` which` l i Figure 1 is a longitudinalV elevation of ourv nomen s. sMi'rH Ann iviL'LiAM Buelens, or' BLooMine'roN, interiors,l

VMFROVEMENT IN MACHIN'ESV-VF0R CLEANING AND POLISHING TUBES.l y

Specification forming part of Letters` Patent No. MNDAlG, dated March 1, 1870.

To all whom `it may concern:

Be it knownthat we, H. S. SMITH and WV.

' HUGHES, of Bloomington, in'the county ot Mc- Lean, in the State of Illinois, have'inventedv :in Improved Machine for Cleaning-v Boilerings, and to the letters ot reference marked thereon, makinga part ot' this speeiiicati'on, in

invention; Figr2, an end elevation of the saine; Fig. 3, an eleva-tion of the rollers at the opposite end of the machine from those shown in Fig. 2; Fig. 4, a sectional elevation taken through scouring-eyliiider on the line 2 2, Fig.`

1; Fig. 5, a section ot' one of the rollers shown in Fig.' 2. l

The object ofthe present invention is to provide :more convenient means for cleaning the fines of ordinary tubular boilers; and its vnai ture consists more especially in the novel construction of the rollers which carry the ilues through the cleaning-cylinder, and the novel construction of the cleaning-cylinder itself, as the whole is hereinafter fully described.

A represents a substantial foundation, sup-V porting an outside frame, B B, and an inside frame, C C, as shown at Figs. 1 and '2, in wh-ich 'l .are made the bearings of the working parts -ot our device-said frames beingmade of iron or other suitable material in order to give the required strength.

Inthe fran'ie C C are formed bearings for supporting a scourer or flue-cleaning cylinder, A', Figs. 1 and 4. `This cylinder is composed ot' heads d b and staves e'c e e, which are held together by bolts put through said heads in the usual manner of fastening similar devices.

The staves e of said cylinder are so formed as to support one or .more springs, f, Figs. 1 and 4, `These springs have a peculiar construction, consisting ot plates j', curved around at t and i, so thatl the parts fr may have afirm bearing on the knives or tools g, and hold them in placefor cleaning ilues. The knives or tools the heads d b, when the aforesaid knives g are to. be reversed, by removing bolts'which pass through holes A', Fig. 4.

Beneath the inner ends of the knives gy and in the staves e are place'l rubber Seats l ll l,

which extend theentire length ofthe knives,

and prevent scales removed from iiues from getting undersaid knives, and so raising them out of place asto make them inoperative for cleaning ilues. .It' said rubber or some other similar-device is not employed for that purpose, the cylinderb cannot be so well operated, for the knives may be raised from the flue, passing through the cylinder, by means making the knives they should belong enough to pass a littlebythe center of the periphery of the flue when set on the `line of a tangent to the same, by means ot' which' arrangement a due cannot vbe bruised or injured, as is the case when the knives are set on a. radial line of the flue. The insideof the cylinder b is lmade to correspond with the size ofthe ordinary boiler-tlues to be'eleaned.

The means used to carry the ue through the vcylinder bvconsists of feed-rollers S- S', Figs. 1,2, and 3. The rollers S are made of metal and have conical forms, so that boilerues may be carried through between. them,

and' to prevent them from bruising the lines,

annular rubber seats T, Figs. 1 and 2, covering the shafts and ends of (the rollers, are eniployed, so that `tlues having more scaleson in some places than others may pass through Vwithout being crushed, and so that a crooked ilue may also pass through. i 4The rubberseats l,are firmly held to the rollers S and to the shafts P R, Fig. 2, by means of nuts R R.',.the`

rollers SYby this means having easy vertical and lateral movements. The rollers -at .the

spective shafts-P R by means ot' nuts X X, Fig. 3. These rubber rollers S each have a conical form, similar to the rollers S, but are not f cased with metal, as the ues passingbetiveen them have been previously cleaned, and consequently they are S0 Smooth that the rubber is not-easily worn.

v I We are not.v particular as tothe combination of,th e gearing used to operate lthe machine, but the following-described gear is found to be very convenient for that purpose:

4 A cog-Wheel, D, is fastened to one of the heads of the cylinderl b, and it has bearings in the inner frame, C C. This wheel is driven byl a pinion, D', Vrigidly fastened to a shaft, J havy lng'bearings in the frame B, and supporting --reversible shipping-gearE E V, which is loosely ttedon said shaftand drives'a bevel-pinion, F, Fig. 1. This bevel-pinion turns on a shaft .4 having a bearing in a support, B', and to .itsj

outer end is fixed a pinion, M, Fig. 2, which drives a gear-wheel, L', the shaft ofl 'which is provided with an inner pinion forzdriving the wheels L N, Figs. l and 2. The shaft of said wheels L N support the rollers S' S, and consequently when the wheel E', attached to `the end of shaft J, is rotated by means of a pin ion, H, and pulley on shaft I, the rollers` SS',

` will beso rotated asl to carry a'tl'ue'through.

the rotating cylinder b.

we claim, and 'desire to secure by Letters Patent of the United States, is-

1. The conical rollers S, when provided'with rubber seats, T', on Itheir internal peripheries 'and ends, for the purpose of feeding crooked and uneven uesinto thecylinder,as described.

- 2. The combination ot' the rollers S, constructed as described, with the cylinder band rollers S', as and for 'the purpose set forth.

in combination with the peculiar-shaped springs describedand shown. HORACE S. SMITH. y WILLIAM HUGHES. Witnesses:

WILLIAM E. HUGHES,

jR. BELL.

Having' thus described our invention, what` 3. The cylinder b, provided with staves e,

f, reversible knives g, and rubber seats l, as 

